from django.core.cache import cache
from django.http import JsonResponse
from django.shortcuts import render
from django.views import View
from apps.areas.models import Area
from meiduo_mall.settings.dev import logger
from utils.response_code import RETCODE

# Create your views here.
#1.查看省市区地址
class AreasView(View):
    def get(self, request):
        area_id = request.GET.get('area_id')
        if not area_id:
            province_list = cache.get('province_list')
            if not province_list:
                try:
                    province_model_list = Area.objects.filter(parent__isnull=True)
                    province_list = []
                    for province_model in province_model_list:
                        province_list.append({'id':province_model.id, 'name':province_model.name})
                except Exception as e:
                    logger.error(e)
                    return JsonResponse({'code':RETCODE.DBERR, 'errmsg':'省份数据错误'})
                cache.set('province_list', province_list, 3600)
            return JsonResponse({'code':RETCODE.OK, 'errmsg':'OK', 'province_list':province_list})
        else:
            sub_data = cache.get('sub_area_' + area_id)
            if not sub_data:
                try:
                    parent_model = Area.objects.get(id=area_id)
                    sub_model_list = parent_model.subs.all()
                    sub_list = []
                    for sub_model in sub_model_list:
                        sub_list.append({'id':sub_model.id, 'name':sub_model.name})
                    sub_data = {
                        'id':parent_model.id,
                        'name':parent_model.name,
                        'subs':sub_list
                    }
                except Exception as e:
                    logger.error(e)
                    return JsonResponse({'code':RETCODE.DBERR, 'errmsg':'城市或区数据错误'})
                cache.set('sub_area_' + area_id, sub_data, 3600)
            return JsonResponse({'code':RETCODE.OK, 'errmsg':'OK', 'sub_data':sub_data})